I disagree with you that zap cannon is worth the risk, I'd just take my nice PP with t-bolt and a nice assured 100% accuracy par move in t-wave over that
Anyway, I know of two good jolteon sets, both are evilly good
first off, we have a slight modifcation of your first set
jolteon@leftovers(female)
substitute
t-wave
attract
t-bolt
total.. evil.. t-wave, attract, substitute... then they have to get past paratract 5 or 6 times in a row to beat you, lol, good luck to them ;\. ineffective against grounds and a few others, but its coverage is excellent...
@miracleberry
hp ice
growth
t-bolt
t-wave/substitute
heeeeeeeeeeres growtheon! an evilly good set that can be a very dangerous sweeper if allowed to growth a couple of times, very dangerous, can cover most anything really.